from os import getcwd as pwd
import tkinter as tk

def tk_13():
    """Create a program that will ask the user to enter a name and then select
       the gender for that person from a drop-down list. It should then add the
       name and the gender (separated by a comma) to a list box when the user
       clicks on a button."""
    base_path = f"{pwd()}/tkgui/imgs"
    window = tk.Tk()
    window.title("Personal Data TK")
    window.geometry("590x200")

    title_icon = tk.PhotoImage(file = f"{base_path}/devfzn_64x64.png")
    window.iconphoto(False, title_icon)
    common_bg = "dodger blue"
    window["bg"] = common_bg

    gender_ops = [ 'Privado', 'Masculino', 'Femenino', 'Otro' ]

    lbl_info = tk.Label(text="Lista Usuarios", font="Verdana 18")
    lbl_info["bg"] = common_bg
    lbl_info.place(x=20, y=20, width=200, height=20)

    box_name = tk.Entry()
    box_name["justify"] = "left"
    box_name.place(x=120, y=62, width=140, height=30)
    box_name.focus()

    sel_gen = tk.StringVar(window)
    sel_gen.set("género")
    lst_genders = tk.OptionMenu(window, sel_gen, *gender_ops)
    lst_genders.place(x=275, y=60, width=100)

    lst_users = tk.Listbox()
    lst_users["justify"] = "center"
    lst_users.place(x=400, y=50, width=150, height=100)

    def add_user():
        name = box_name.get()
        gender = sel_gen.get()
        if gender != "género" and name != '':
            new_user = f"{name},{gender}"
            lst_users.insert('end', new_user)
            box_name.delete(0,'end')
            sel_gen.set("género")
            box_name.focus()
        else:
            lst_genders.focus()

    btn_add = tk.Button(text="Agregar usuario", command=add_user)
    btn_add.place(x=40, y=110, width=340, height=35)

    lbl_name = tk.Message(text="NOMBRE", font="Verdana 12")
    lbl_name["bg"] = common_bg
    lbl_name["width"] = 70
    lbl_name["justify"] = "left"
    lbl_name.place(x=40, y=62, width=70, height=25)

    window.mainloop()